It connotes six items on which riba al-fadl arises: gold, silver, dates, wheat, salt and barley. Their exchange has been conditional with equality in weight and measure and simultaneous transfer of possession, failing which it would involve riba a-lfadl. It has been held by some jurists that riba al-fadl arises only in respect of these six articles, but others have included such other articles as well which could be accepted as being similar to these six.
